linux-kernel - Re: [PATCH AUTOSEL 6.1 15/35] btrfs: stop using write_one_page in btrfs_scratch

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Message-ID: <Y9qDacTWGdANiOJ7@sashalap>
Date:   Wed, 1 Feb 2023 10:21:13 -0500
From:   Sasha Levin <sashal@...nel.org>
To:     David Sterba <dsterba@...e.cz>
Cc:     linux-kernel@...r.kernel.org, stable@...r.kernel.org,
        Christoph Hellwig <hch@....de>,
        David Sterba <dsterba@...e.com>, clm@...com,
        josef@...icpanda.com, linux-btrfs@...r.kernel.org
Subject: Re: [PATCH AUTOSEL 6.1 15/35] btrfs: stop using write_one_page in
 btrfs_scratch_superblock

On Tue, Jan 24, 2023 at 05:57:16PM +0100, David Sterba wrote:
>On Tue, Jan 24, 2023 at 08:41:11AM -0500, Sasha Levin wrote:
>> From: Christoph Hellwig <hch@....de>
>>
>> [ Upstream commit 26ecf243e407be54807ad67210f7e83b9fad71ea ]
>>
>> write_one_page is an awkward interface that expects the page locked and
>> ->writepage to be implemented.  Replace that by zeroing the signature
>> bytes and synchronize the block device page using the proper bdev
>> helpers.
>>
>> Signed-off-by: Christoph Hellwig <hch@....de>
>> Reviewed-by: David Sterba <dsterba@...e.com>
>> [ update changelog ]
>> Signed-off-by: David Sterba <dsterba@...e.com>
>> Signed-off-by: Sasha Levin <sashal@...nel.org>
>
>Please drop this patch and "btrfs: factor out scratching of one regular
>super block" from all stable queues. It's not a fix, only preparatory
>work to allow removing write_one_page from MM code.
>
>Commit ids: 0e0078f72be81bbb and 26ecf243e407be54

Ack, dropped.

-- 
Thanks,
Sasha